Wisdom tooth

Wisdom tooth

A wisdom tooth or third molar is one of the three molars per quadrant of the human dentition. It is the most posterior of the three. Wisdom teeth generally erupt between the ages of 17 and 25. Most adults have four wisdom teeth, one in each of the four quadrants, but it is possible to have none, fewer, or more, in which case the extras are called supernumerary teeth.

Development

Wisdom teeth are generally the last teeth to develop and are located in the back of your mouth, behind your second molars. Their development is usually completed between the middle teenage years and early twenties, a time traditionally associated with the onset of maturity and the attainment of wisdom.

Impaction

Impaction of wisdom teeth happens when there is not enough space for the tooth to grow in a normal position. The tooth may grow at an angle and cause problems such as infection, damage to other teeth, or a cyst.

Extraction

Extraction of wisdom teeth is a common procedure. It is usually done under local anesthesia. The dentist or oral surgeon will make an incision in the gum tissue, remove the tooth, and then stitch the wound closed.

Complications

Complications can occur after the extraction of wisdom teeth. These can include infection, dry socket, nerve injury, and persistent pain.

See also

• Dentistry
• Oral and maxillofacial surgery
• Tooth eruption

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